What is the name of the intravenous catheter that is inserted through a large arm vein and extends into the central venous system?

A peripherally inserted central catheter (PICC) is a type of intravenous catheter that is specifically designed for long-term access to the central venous system. It is inserted into a peripheral vein, typically in the arm, and threaded through to larger veins, ultimately reaching the superior vena cava. This allows access for the administration of medications, nutrition, or fluids over extended periods without the need for repeated venipunctures.

The insertion process for a PICC is distinct because it involves a peripheral site for entry, making it less invasive than traditional central venous catheters that may be placed directly into central vein sites like the jugular or subclavian veins. This characteristic allows for easier placement and potential use in outpatient settings.

Understanding the anatomy and function of a PICC is vital for its application in clinical scenarios, particularly for patients requiring long-term infusions, such as those undergoing chemotherapy or total parenteral nutrition. This knowledge underscores why identifying a PICC as the answer to this question is accurate, recognizing its role in accessing the central venous system while being inserted peripherally.